JPH08168992A - Glass wool duct cutting machine - Google Patents

Abstract

PURPOSE: To improve the finish of a cut plane by providing a clamp-mechanism- equipped rest with drive mechanisms by which a cutter is moved back and forth between one side and the other side of a glass wool duct. CONSTITUTION: A glass wool duct is placed on a frame 3, and then drives 4a, 5a are driven to move glass wool duct holding plates 4, 5 in X direction so as to temporarily and lightly hold the glass wool duct in X direction by pressing the glass wool duct lightly enough so that it is not compressed. The angle at which the glass wool duct is cut is adjusted by driving the drive unit 2a and thus rotating a frame 2. When a drive unit 1a is driven a cutter 1 moves downward while being moved back and forth in X direction and in the opposite direction by a cam mechanism provided in the drive unit 1 a and having an eccentric cam, so that the glass wool duct is cut.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass wool duct cutting machine for cutting a glass wool duct.

[0002]

2. Description of the Related Art In order to prevent noise of a fluid flowing in a pipeline, a method of externally fitting a hollow glass wool duct into the pipeline and silencing the sound has been used. When fitting the glass wool duct to the curved pipe, it is necessary to bend it so that it can be fitted at an appropriate angle according to the curved pipe. The glass wool duct is cut so as to form, and the cut glass wool duct on one side is rotated 180 degrees to join the cut surfaces. Conventionally, when cutting a glass wool duct,
Marking was made on the part to be cut, and while holding with one hand, the other hand was used to cut along the marking line with a knife such as a saw.

[0003]

In the above-mentioned conventional method, the cutting takes a long time, and the worker consumes physical strength. In addition, the cut surface is not finished very well, the finish of the cut surface varies depending on the operator, and it is not a preferable cutting method from the viewpoint of safety.

[0004]

According to the present invention, a clamp mechanism for fixing a glass wool duct to a table on which the glass wool duct is placed is provided, and a blade that reciprocates in the glass wool duct in the longitudinal direction of the blade is provided outside the glass wool duct. A drive mechanism for reciprocating the blade from one side to the other side of the glass wool duct is provided on the base, and the drive mechanism is rotatable about an axis provided at right angles to the length direction of the glass wool duct, On the other hand, a glass wool duct cutting characterized in that the glass wool duct and the blade can be relatively moved in the longitudinal direction of the glass wool duct with the clamping mechanism being loosened so that the glass wool duct can be fixed stepwise or at an arbitrary angle. It is a machine.

[0005]

【Example】

(Embodiment 1) FIG. 1 shows the appearance of a semi-automatic glass wool duct cutting machine 100 to which the present invention is applied. The steel blade 1 and the blade 1 reciprocate in the X direction and the reverse X direction (vibration).
A cam mechanism 1b (FIGS. 7 and 11) for driving, a driving device 1a for reciprocating the blade 1 and the cam mechanism 1b in the Z direction and the reverse Z direction, a steel-made downward-opening U-shaped frame 2 and a horizontal frame 2 Drive device 2a for rotating the drive shaft 2b as a center, pedestal 3 made of steel, glass wool duct holding plates 4, 5, 3 made of aluminum
Drive devices 4a, 5a for reciprocating the 0, 31, glass wool duct pressing plates 4, 5 in the X direction and the reverse X direction, respectively.
And so on.

An electric motor (motor) is used as the drive device 2a, and an electric motor, a rodless cylinder, a chain drive, or the like is used as the drive devices 4a and 5a. The glass wool duct pressing plates 4 and 5 are movable by drive devices 4a and 5a, respectively, but the glass wool duct pressing plates 30 and 31 are fixed to the pedestal 3 at positions facing the glass wool duct pressing plates 4 and 5, respectively. Further, the glass wool duct pressing plates 4 and 5 are, as shown in FIG.
It may be held by being sandwiched by d, may be attached by a bolt 5b and a nut 5c as shown in FIG. 4, and may be a moving portion (a member that moves in the X direction or the reverse X direction) of the driving device 4a, 5a. You may form integrally.

As shown in FIG. 11, an upper pulley 2 driven by a drive shaft 23a is provided above the drive device 1a (FIG. 1).
3, the lower driven pulley 22 is arranged in the lower portion, and the upper driven pulley 23 is
The horizontal base plate 20 is arranged between the lower pulleys 22. A through hole 21 is formed in the base plate 20, a wire 24 is passed through the through hole 21, an upper end portion of the wire 24 is hooked on an upper pulley 23, a lower end portion is hooked on a lower pulley 22, and both end portions are attached to the base plate 20, for example, as shown in FIG. As shown in, the end of the wire 24 is welded and fixed to the base plate 20. The black triangle at the joint between the wire 24 and the base plate 20 in FIG. 12 indicates the weld bead 33.
Here, a sprocket may be used instead of the upper pulley 23 and the lower pulley 22, and a chain may be used instead of the wire 24. The base plate 20 is supported in the drive device 1a so as to be vertically movable in a horizontal posture. Further, the drive shaft 23 a may be provided on the upper pulley 23 or may be provided on the lower pulley 22.

Instead of the structure shown in FIG. 12, a pair of washers 2 are provided in which the ends of the wires 24 are welded together to form a ring shape, and holes 25a for passing the wires 24 are provided as shown in FIG.
The base plate 20 is sandwiched from above and below with 5 and the upper and lower washers 2
Each 5 may be welded to the wire 24. The black triangle at the junction of the washer 25 and the wire 24 in FIG. 13 indicates the weld bead 33. According to this structure, the base plate 20 can be easily connected to the wire 24.

As shown in FIG. 11, the base plate 20
Is provided with a cam mechanism 1b (FIGS. 7 to 10), and the cam mechanism 1b is provided with a blade 1, and is reciprocated in the Z direction and the reverse Z direction (up and down direction) of FIG. 1 by the drive device 1a. .
The driving device 1a is fixed to the frame 2, and the frame 2 has the blade 1
There are provided grooves 41, 42 (FIG. 1) through which

The cam mechanism 1b fixed to the base plate 20 shown in FIG. 11 has the following structure, for example. That is, as shown in FIG. 7 (partial cross-sectional schematic view of the cam mechanism 1b), one end of the connecting rod 12 is rotatably connected via a pin 36 to an eccentric cam 11a having a vertical drive shaft 35. The other end of 12 is rotatably connected to the blade mounting member 13 to which the blade 1 is fixed via a pin 37, and the base plate 20
The blade mounting member 13 is slidably and non-rotatably provided inside the cylinder 15 fixed to the blade 15. When the eccentric cam 11a rotates in the direction of arrow R, the blade 1 reciprocates in the lateral direction of FIGS. Vibrate. Further, when the driving device 2a is driven, the cam mechanism 1b driven on the base plate 20.
Moves up and down together with the base plate 20, and at the same time, the blade 1 moves up and down.

The frame 2 in FIG. 1 is installed on a pedestal 3 via a drive shaft 2b provided in a drive device 2a, and the frame 2 is driven by the drive shaft 2b.
The rotation is controlled by the drive device 2a. Glass wool duct pressing plates 4 and 5 are provided in the Y direction and the reverse Y direction of the frame 2, and reciprocate in the X direction and the reverse X direction of the gantry 3 by the drive devices 4a and 5a, respectively. For the installation position of the frame 2 on the gantry 3, strictly speaking, when the frame 2 is vertical, and when the frame 2 is inclined like the chain double-dashed line in FIG. A groove 3b is provided. Here, FIG. 2 shows a front view of FIG. 1 viewed in the X direction.

Next, the operation will be described. FIG. 1 shows the blade 1 partially lowered for the sake of clarity. First, the blade 1 is raised to a position where it does not interfere with the glass wool duct 50 (FIG. 3). Next, as shown in FIG. 3, the glass wool duct 50 is placed on the upper surface 3a of the gantry 3 so as to pass the frame 2 in the Y direction or the reverse Y direction. After placing the glass wool duct 50 on the gantry 3, the driving devices 4a and 5a are driven to move the glass wool duct holding plates 4 and 5 in the X direction, and the glass wool duct 50 is lightly pressed in the X direction so as not to be compressed. Hold lightly temporarily.

Positioning of the blade 1 with respect to the cut portion of the glass wool duct 50 is performed as follows. The angle at which the glass wool duct 50 is cut is adjusted by rotating the frame 2 as shown by the chain double-dashed line in FIG. 2 by driving the driving device 2a. At that time, as shown in FIG. 5, an angle adjusting plate 6 (fixed on the pedestal 3 adjacent to the drive device 2a is provided with a plurality of holes 6a so that the turning angle can be adjusted stepwise. ) Is used to rotate the frame 2 to a required angle, and one appropriate hole 6a of a plurality of holes is aligned with a hole (not shown) of the stopper 7 fixed to the frame 2 so that the pin 8 is fixed. The frame 2 may be held in a state of being rotated by a predetermined angle by being inserted, or as shown in FIG. 5, the angle adjusting plate 6 is provided with an arc-shaped elongated hole 6b and fixed to the frame 2. The bolt 9 may be held by passing the bolt 9 through the elongated hole 6b and screwing the nut 10. Of course, the above two methods may be simultaneously adopted as shown in FIG. Further, by using the driving device 2a having the servo mechanism, the driving device 2c shown by the chain double-dashed line in FIG. 6 may be able to stop the frame 2 at any designated angular position.

FIG. 4, which is a view taken along the line IV-IV of FIG. 3, shows a case where the glass wool duct 50 is cut at a right angle.
The brake 1 (not shown) is released without driving the drive device 1a, and the lifting / lowering handle (not shown) of the blade 1 is manually pushed down to bring the blade 1 into contact with the glass wool duct 50, and to apply it to the glass wool duct 50. One of the ends of the glass wool duct 50 is pushed so that the blade 1 comes to the position of the marking 38, and the position is adjusted appropriately.

When the blade 1 comes to the position of the marking 38 to be cut, the driving devices 4a and 5a are driven to fix the glass wool duct 50 so as not to move even if an external force is applied. When the alignment is completed, the blade 1 is slightly separated from the glass wool duct 50, and the following cutting operation is started.

When the driving device 1a is driven, the cutting tool 1 has a cam mechanism 1 having an eccentric cam 11a provided on the driving device 1a.
While reciprocating (vibrating) in the X direction and the reverse X direction according to b (FIGS. 7 to 10), it moves downward in FIG. 1 (direction for cutting the glass wool duct 50).

When the blade 1 cuts the glass wool duct 50 and reaches the groove 3b of the pedestal 3, the cutting ends. When the cutting of the glass wool duct 50 is completed, the drive shaft 1a is rotated in the reverse direction by the driving device 1a to move the blade 1 in the reverse direction (upward), and the blade 1 is moved to the standby position above the glass wool duct 50. When the blade 1 moves upward, in order to make it easier to pass through the cut surface of the glass wool duct 50, the cam mechanism 1b is operated even when the blade 1 is moved upward to move in the X direction and the reverse X direction. It is preferable to vibrate because the blade 1 can be smoothly raised.

When the blade 1 moves above the glass wool duct 50, the glass wool duct pressing plates 4 and 5 are loosened, the glass wool duct 50 is moved in the Y direction or the reverse Y direction, and the frame 2 is readjusted to a predetermined angle. Align the position of the blade 1 with another cutting point (marking 38) by the procedure of
Repeat the cutting work.

Although not shown, the sensors are arranged at the upper limit and the lower limit of the movement of the base plate 20, and when the sensors react, the movement of the base plate 20 is stopped, or in the opposite direction (to the standby position at the upper end). It can also be done. The sensor also contributes to the prevention of accidents due to malfunctions, so it is preferable to install the sensor.

Although not shown, if the glass wool duct 50 is too long with respect to the gantry 3, a drawer-type auxiliary pedestal that can be stored in the gantry 3 may be provided. The glass wool duct 50 is pulled out and used only when necessary, and is stored when cutting the glass wool duct 50, which is not so long, to secure a wide working space.

(Embodiment 2) FIG. 14 shows an automatic glass wool duct cutting machine 200. In the semi-automatic glass wool duct cutting machine 100 of the first embodiment, the pedestal 3 of FIG.
On the other hand, the glass wool duct 50 was moved in the longitudinal direction and the frame 2 was fixed to the pedestal 3 so that only rotation was possible.
As shown in, the glass wool duct 50 is fixed on the pedestal 3, and the frame 2 is horizontally moved along the long hole 29 provided in the pedestal 3 and is rotatable.

A stopper 26 is provided on the left end of the gantry 3, and a clamp device 27 is provided on the stopper 26. The clamp device 27 is moved to a position of a length long enough to hold the glass wool duct by a drive device (not shown). Further, the frame 2 is provided with a clamp device 28, and is moved to a position where the glass wool duct 50 is held by a drive device 40 (FIG. 16) incorporated in the frame 2.

The automatic glass wool duct 200 is operated by a numerical controller (not shown), and the glass wool duct 50 is operated.
The frame 2 is programmed so as to cut at a required position at a required angle instead of directly marking the frame, and the frame 2 operates according to a preset program. Clamp device 2
7 and 28 may also be operated by the numerical controller.

At first, the cross section of the glass wool duct 50 is not always perpendicular to the lengthwise direction, so that the end portion on the side where the reference point 51 is taken before the cutting operation (FIG. 14). Then, the end portion 50a of FIG. 14 is cut and removed so that the right end portion) becomes perpendicular to the length direction.

Using the right end of the glass wool duct 50 in FIG. 14 as a reference point 51, programming is performed in advance (numerical control) at what angle a point moved by a distance of 50 mm from the reference point 51 is cut, and the frame is formed according to the program. 2 moves and the movement of the frame 2 stops, the clamp device 28 holds the glass wool duct 50, and the blade 1 cuts the glass wool duct 50.

In the semi-automatic glass wool duct cutting machine 100 of the first embodiment, the marking of the cutting location and the work of aligning the cutting tool 1 with the marking were performed manually, but in the automatic glass wool duct cutting machine 200, the numerical control device (see FIG. (Not shown) aims to automate the above work.

[0027]

The glass wool duct cutting machine according to the present invention can cut both the automatic type and the semi-automatic type with higher accuracy than the manual cutting, and the time for cutting the glass wool duct can be shortened to improve the working efficiency. To do. Compared with the conventional method of manually cutting, the fatigue of the operator can be dramatically reduced. Since all the parts used are commercially available, quick response is possible even if it should break down. With a semi-automatic glass wool duct cutting machine, there is no need to mark a reference mark on the cutting location over the entire circumference, and it is sufficient to put a mark of a size that allows you to check the cutting start position with a blade. The time required for the work can be greatly reduced.
In the automatic glass wool duct cutting machine, since it is processed by the numerical control device, if the reference point is set, the same glass wool duct 50 can be continuously cut at an arbitrary length and at an arbitrary angle, so that the quality is always high. A cutting process with almost no error is possible.

[Brief description of drawings]

FIG. 1 is an external perspective view of a semi-automatic glass wool duct cutting machine.

FIG. 2 is a front view of a semi-automatic glass wool duct cutting machine.

FIG. 3 is an external perspective view showing a state in which a glass wool duct is installed in a semi-automatic glass wool duct cutting machine.

FIG. 4 is a side view of a semi-automatic glass wool duct cutting machine.

FIG. 5 is a schematic front view showing an apparatus for stepwise adjusting the rotation angle of the frame 2 of the semi-automatic glass wool duct cutting machine.

FIG. 6 is a front view showing a state in which the frame 2 is rotated in FIG.

7 is a schematic plan view showing the concept of a cam mechanism 1b for vibrating the blade 1 in the X direction and the reverse X direction in FIG.

8 is a schematic plan view showing a state in which the eccentric cam 11a is rotated 90 degrees clockwise in FIG. 7. FIG.

9 is a schematic plan view showing a state in which the eccentric cam 11a is rotated 180 degrees clockwise in FIG. 7. FIG.

10 is a schematic plan view showing a state in which the eccentric cam 11a is rotated clockwise by 270 degrees in FIG. 7. FIG.

FIG. 11 is a schematic side view showing a mechanism in which the blade 1 moves up and down.

FIG. 12 is a partial enlarged view of FIG. 11 showing a means for fixing the wire to the base plate.

FIG. 13 is a partially enlarged view showing means for fixing the wire to the base plate by another means in FIG.

FIG. 14 is a front view of an automatic glass wool duct cutting machine.

FIG. 15 is a plan view of an automatic glass wool duct cutting machine.

FIG. 16 is a right side view of the automatic glass wool duct cutting machine.

[Explanation of symbols]

 1 Blade 1a Drive (drive mechanism) 1b Cam mechanism (longitudinal reciprocating mechanism of blade of blade) 2b Drive shaft 3 Frame 4, 5 Glass wool duct holding plate (clamp mechanism) 4a, 5a Drive (clamp mechanism) 50 Glass wool duct

Claims (1)

[Claims] 1. A clamp mechanism for fixing the glass wool duct is provided on a table on which the glass wool duct is mounted, and a blade that reciprocates in the longitudinal direction of the blade is provided outside the glass wool duct, and the blade is mounted on the table. A drive mechanism for reciprocating from one side to the other side is provided, and the drive mechanism is rotatable about an axis provided at right angles to the length direction of the glass wool duct, and is stepwise or arbitrary angle with respect to the glass wool duct. The glass wool duct cutting machine is characterized in that the glass wool duct and the blade can be relatively moved in the longitudinal direction of the glass wool duct while the clamp mechanism is loosened.